Not sure if you are serious about all this, but the answer to your original question is, you're getting old. Everything has always sucked for people who weren't willing to appreciate the present on its own terms.
TV is better than ever, with cable putting the pressure on. Ever watch Dexter, Californication, Entourage, Modern Family, Curb Your Enthusiasm, Sarah Silverman Show, ...? All of these are way better than almost anything from the crappy Dallas/Cosby days.
Blockbuster movies tend to be crappy remakes, that's true, because of the way movies are funded. There's still good stuff out there. Check this list for instance: [Invalid or Expired Link Removed]
Music??? IMHO, the 80s and 90s were meh. I can find new music in any style I want from metal to jazz to classical to altrock to glitch to hiphop to bluegrass to soul to... Any style ever created is still being created, and many that have not even been named yet.
You need to adapt to the times.
1) Music you would like is probably out there, you just haven't learned to search for it.
2) You might be stuck in your formative years. The old artists aren't around any more. Find some new guys, John Mayer is a good example. Peter Gabriel is still going strong.
By the way, if you hadn't noticed, people have been ranting the same rant from thousands of years, "the new music/art/culture isn't as good as the old". It wasn't true then and it isn't true now.
Go out and see some live music. Search on youtube. It's out there.
I'm 49. Music will always be great. If you hate it, create something you love.